MPA Electrical B1691 Power Brake Booster

Remanufactured Vacuum Brake Booster for Ram

Restore consistent brake assist with this remanufactured vacuum power brake booster from MPA Electrical. Built for Ram 1500 and Ram 1500 Classic applications, Part Number B1691 is a standard replacement unit engineered for low pedal effort and dependable vacuum sealing.

MPA Electrical’s Reman Vac Pwr Brake Booster w/o Master Cyl line focuses on replacement-ready brake assist components for everyday driving demands. This booster is remanufactured, uses a metal housing, and includes a mounting bracket for direct service replacement on the listed Ram applications.

• Remanufactured vacuum power brake booster
• Standard replacement brake service grade
• Metal housing construction
• Mounting bracket included
• Master cylinder not included
• Brake pedal rod extension not included
• Front seal and gasket not included
• Master cylinder stud thread size: 8x1.25
• Two mounting studs

Detailed Product Overview

MPA Electrical B1691 is designed for Ram brake systems that use a vacuum booster without an included master cylinder. The remanufactured design uses specially treated replacement components to help maintain vacuum integrity and consistent pressure transfer, supporting smooth brake pedal response in Ram 1500 and Ram 1500 Classic trucks. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Compatible With 2013-2018 Ram 1500 and 2019-2024 Ram 1500 Classic, this booster is a direct-fit service part for vehicles requiring a vacuum brake booster replacement. Use Part Number B1691 when matching the correct brake booster for these Ram applications.

Common Problems This Part Can Address

• Hard brake pedal feel from a weak or leaking vacuum booster
• Reduced brake assist during normal stopping
• Vacuum seal loss that affects pedal response
• Brake booster replacement after wear or internal diaphragm issues
• Service replacement needs on Ram 1500 and Ram 1500 Classic brake systems

Installation Notes and Tips

Verify master cylinder compatibility before installation, since the master cylinder is not included. Confirm the 8x1.25 stud thread size, mounting stud count, and bracket alignment against the original unit before assembly. Inspect the vacuum source, brake pedal linkage, and related seals during replacement to help ensure proper brake assist operation.

Quality Assurance

MPA Electrical subjects each unit to end-of-line testing with proprietary equipment to verify performance before release. Part Number B1691 is remanufactured to deliver consistent vacuum brake assist for the listed Ram applications.